| Title:
|
Comparative analysis of the visual performance after implantation of the Toric Implantable Collamer Lens in stable keratoconus: 4-year follow-up
|
| Author(s):
|
Farideh Doroodgar1, Azad Sanginabadi, Feazollah Niazi2, Alireza Baradaran-Rafie
|
| Presentation Type:
|
Oral
|
| Subject:
|
Cornea and Refractive
|
| Others:
|
|
|
Presenting Author:
|
|
| Name:
|
Farideh Doroodgar
|
| Affiliation :(optional)
|
Negah eye hospital
|
| E mail:
|
farinaz_144@yahoo.com
|
| Phone:
|
09125259912
|
|
Mobile: |
09125259912
|
|
Abstract (Max 200 words)
|
|
| Purpose:
|
To report on 4-year postoperative visual performance with the Toric Implantable Collamer Lens (TICL) for stable keratoconus
|
| Methods:
|
Forty eyes of 24 patients with stable keratoconus with myopia between 0.00 and -18.00 diopters (D) and astigmatism between 1.25 and 8.00 diopters were evaluated in this prospective interventional study (https://clinicaltrials.gov/ct2/show/NCT02833649).
We evaluated refraction, Visual outcomes, astigmatic changes analyzed by Alpins vector, contrast sensitivity, aberrometry, Modulation transfer functions (MTF), defocus curve, subjective satisfaction, and operative and postoperative complications
|
| Results:
|
At 4-year follow-up, 45% had 20/20 vision or better and 100% had 20/40 or better uncorrected visual acuity (UCVA). Vector analysis of refractive astigmatism shows that, the SIA (3.20±1.46D) wasn’t significantly different from the TIA (3.14±1.42 D) (p= 0.620). At 4 years postoperatively, none of the eyes showed a decreased in UCVA, in contrast to 24 eyes in which UCVA was increased by ≥1 lines, with contrast sensitivity and improvement in total aberrations and MTF value at 5 per degree (p*꞊0.004 ) after TICL implantation. The cumulative 4-year corneal endothelial cell loss was ≤5%. No patients reported dissatisfaction, and 100% of patients reported they would choose implantable collamer lens (ICL) implantation again. At the end of follow-up, the vault was 658±54.33µm (range, 500-711) and the intraocular pressure (IOP) was 11.7±2.08 mmHg. Occurrences of glare and night-driving troubles diminished after TICL surgery
|
| Conclusion:
|
The results from this standardized clinical investigation support TICL implantation from clinical and optical viewpoints in patients with stable keratoconus
|
| Attachment:
|
|